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Javascript indexOf and replace - am I missing something

I have this javascript function;
i send it a number from a button and all go well untill the index-of method it has a problem.
CODE:
<script lang="ja" type="text/javascript">
function YellowChair(NumId)
{
if (document.getElementById("CheckBox" + NumId).checked)
{
document.getElementById("ChairImg" + NumId).src = "Images/YellowChair.png";
TypeTheNum(NumId, true);
}
else
{
document.getElementById("ChairImg" + NumId).src = "Images/BlueChair.png";
TypeTheNum(NumId, false);
}
}
function TypeTheNum(NumId,Add)
{
var Label = document.getElementById("SelectedSitsLabel");
var Hidden = document.getElementById("SelectedSitsHidden");
if (Label.innerHTML == "")
{
Label.textContent += NumId;
Hidden.textContent += NumId;
}
else
{
if (Add)
{
Label.textContent += "," + NumId;
}
else
{
// getting stuck here.
if (Label.indexOf((NumId + ",").toString()) != -1)
{
alert("1");
Label.replace((NumId + ",").toString(), "");
}
else
{
alert("ELSE");
Label.replace(("," + NumId).toString(), "");
}
}
}
Hidden.textContent = Label.textContent;
}
</script>
i thought maybe its because I insert text with textContent,
also , im pretty sure somthing is wrong with the replace.
Many thanks!

HTMLElement hasn't a method indexOf.String owned the method.remeber reset textContent if the textContent changed.
function YellowChair(NumId)
{
if (document.getElementById("CheckBox" + NumId).checked)
{
document.getElementById("ChairImg" + NumId).src = "Images/YellowChair.png";
TypeTheNum(NumId, true);
}
else
{
document.getElementById("ChairImg" + NumId).src = "Images/BlueChair.png";
TypeTheNum(NumId, false);
}
}
function TypeTheNum(NumId,Add)
{
var Label = document.getElementById("SelectedSitsLabel");
var Hidden = document.getElementById("SelectedSitsHidden");
if (Label.innerHTML == "")
{
Label.textContent += NumId;
Hidden.textContent += NumId;
}
else
{
if (Add)
{
Label.textContent += "," + NumId;
}
else
{
// getting stuck here.
if (Label.textContent.indexOf((NumId + ",").toString()) != -1)
{
alert("1");
Label.textContent=Label.textContent.replace((NumId + ",").toString(), "");
}
else
{
alert("ELSE");
Label.textContent=Label.textContent.replace(("," + NumId).toString(), "");
}
}
}
Hidden.textContent = Label.textContent;
}
<button onclick="TypeTheNum('foo')">Remove `foo`</button>
<div id="SelectedSitsLabel">foo,bar,baz</div>
<div id="SelectedSitsHidden"></div>

Label is a DOM element, not a string. So if you need to get characters from the text inside the element, you have to use something like var content = Label.textContent; content.indexOf() and then replace the textContent again after replacing it in the string.
Also as a sidenote, try to look up the differences between innerHTML, textContent and innerText so you can avoid future issues.

The function:
var element = document.getElementById(id);
Returns an Element object, or null but not an string.
Maybe you want to change your code to use textContent property which seems to be the one you are working on like:
if (Label.textContent.indexOf((NumId + ",").toString()) != -1){
alert("1");
Label.textContent.replace((NumId + ",").toString(), "");
}
else{
alert("ELSE");
Label.textContent.replace(("," + NumId).toString(), "");
}

You need to assign the replacement to something:
Label.textContent = Label.textContent.replace(…)

Angularjs ng-bind-html with custom Filter

I am currently working with ng-bind-html. Basically, what I am trying to do is, when I post a blog, the blog contains links and other styling. So when I am trying to show the list of blogs, I am using ng-bing-html like this:
<p ng-bind-html="blog.blogContent"></p>
which works fine.
But in addition, I try to truncate the blog and show only few paragraphs with view more option by passing a custom filter. But when I pass the filter I get the following:
<p ng-bind-html="blog.blogContent | Truncate"></p>
Error: [$sanitize:badparse] The sanitizer was unable to parse the
following block of html: <a href="https:.......
My Filter looks like this:
return function (text, length, end) {
if (text !== undefined) {
if (isNaN(length)) {
length = 450;
}
if (end === undefined) {
end = ".......";
}
if (text.length <= length || text.length - end.length <= length) {
return text;
} else {
return String(text).substring(0, length - end.length) + end;
}
}

You can solve this using custom directives and filters. try this one: https://stackoverflow.com/a/45076560/6816707

I used the solution posted by Minouris in this post (Javascript truncate HTML text) and adapted it into an AngularJS filter. It seems to work pretty well. The filter is
angular.module('plunker').filter('Truncate', function() {
return function(text, length, end) {
if (text !== undefined) {
if (isNaN(length)) {
length = 20;
}
if (end === undefined) {
end = ".......";
}
if (text.length <= length || text.length - end.length <= length) {
return text;
}
var truncated = text.substring(0, length);
// Remove line breaks and surrounding whitespace
truncated = truncated.replace(/(\r\n|\n|\r)/gm,"").trim();
// If the text ends with an incomplete start tag, trim it off
truncated = truncated.replace(/<(\w*)(?:(?:\s\w+(?:={0,1}(["']{0,1})\w*\2{0,1})))*$/g, '');
// If the text ends with a truncated end tag, fix it.
var truncatedEndTagExpr = /<\/((?:\w*))$/g;
var truncatedEndTagMatch = truncatedEndTagExpr.exec(truncated);
if (truncatedEndTagMatch != null) {
var truncatedEndTag = truncatedEndTagMatch[1];
// Check to see if there's an identifiable tag in the end tag
if (truncatedEndTag.length > 0) {
// If so, find the start tag, and close it
var startTagExpr = new RegExp(
"<(" + truncatedEndTag + "\\w?)(?:(?:\\s\\w+(?:=([\"\'])\\w*\\2)))*>");
var testString = truncated;
var startTagMatch = startTagExpr.exec(testString);
var startTag = null;
while (startTagMatch != null) {
startTag = startTagMatch[1];
testString = testString.replace(startTagExpr, '');
startTagMatch = startTagExpr.exec(testString);
}
if (startTag != null) {
truncated = truncated.replace(truncatedEndTagExpr, '</' + startTag + '>');
}
} else {
// Otherwise, cull off the broken end tag
truncated = truncated.replace(truncatedEndTagExpr, '');
}
}
// Now the tricky part. Reverse the text, and look for opening tags. For each opening tag,
// check to see that he closing tag before it is for that tag. If not, append a closing tag.
var testString = reverseHtml(truncated);
var reverseTagOpenExpr = /<(?:(["'])\w*\1=\w+ )*(\w*)>/;
var tagMatch = reverseTagOpenExpr.exec(testString);
while (tagMatch != null) {
var tag = tagMatch[0];
var tagName = tagMatch[2];
var startPos = tagMatch.index;
var endPos = startPos + tag.length;
var fragment = testString.substring(0, endPos);
// Test to see if an end tag is found in the fragment. If not, append one to the end
// of the truncated HTML, thus closing the last unclosed tag
if (!new RegExp("<" + tagName + "\/>").test(fragment)) {
truncated += '</' + reverseHtml(tagName) + '>';
}
// Get rid of the already tested fragment
testString = testString.replace(fragment, '');
// Get another tag to test
tagMatch = reverseTagOpenExpr.exec(testString);
}
return truncated;
}
}
function reverseHtml(str) {
var ph = String.fromCharCode(206);
var result = str.split('').reverse().join('');
while (result.indexOf('<') > -1) {
result = result.replace('<',ph);
}
while (result.indexOf('>') > -1) {
result = result.replace('>', '<');
}
while (result.indexOf(ph) > -1) {
result = result.replace(ph, '>');
}
return result;
}
});
Working plunkr:
http://plnkr.co/edit/oCwmGyBXB26omocT2q9m?p=preview
I havent tested the above solution and you may run into issues with more complicated HTML strings. May I suggest using a Jquery library like https://github.com/pathable/truncate to be safe?

jQuery "keyup" crashing page when checking 'Word Count'

I have a word counter running on a DIV and after typing in a few words, the page crashes. The browser continues to work (par scrolling) and no errors are showing in Chrome's console. Not sure where I'm going wrong...
It all started when I passed "wordCount(q);" in "keyup". I only passed it there as it would split-out "NaN" instead of a number to countdown from.
JS:
wordCount();
$('#group_3_1').click(function(){
var spliced = 200;
wordCount(spliced);
}) ;
$('#group_3_2').click(function(){
var spliced = 600;
wordCount(spliced);
}) ;
function wordCount(q) {
var content_text = $('.message1').text(),
char_count = content_text.length;
if (char_count != 0)
var word_count = q - content_text.replace(/[^\w ]/g, "").split(/\s+/).length;
$('.word_count').html(word_count + " words remaining...");
$('.message1').keyup(function() {
wordCount(q);
});
try
{
if (new Number( word_count ) < 0) {
$(".word_count").attr("id","bad");
}
else {
$(".word_count").attr("id","good");
}
} catch (error)
{
//
}
};
HTML:
<input type="checkbox" name="entry.3.group" value="1/6" class="size1" id="group_3_1">
<input type="checkbox" name="entry.3.group" value="1/4" class="size1" id="group_3_2">
<div id="entry.8.single" class="message1" style="height: 400px; overflow-y:scroll; overflow-x:hidden;" contenteditable="true"> </div>
<span class="word_count" id="good"></span>
Thanks in advanced!

This is causing an infinite loop if (new Number(word_count) < 0) {.
Your code is a mess altogether. Just study and start with more basic concepts and start over. If you want to describe your project to me in a comment, I would be glad to show you a good, clean, readable approach.
Update:
Part of having a good architecture in your code is to keep different parts of your logic separate. No part of your code should know about or use anything that isn't directly relevant to it. Notice in my word counter that anything it does it immediately relevant to its word-counter-ness. Does a word counter care about what happens with the count? Nope. It just counts and sends the result away (wherever you tell it to, via the callback function). This isn't the only approach, but I just wanted to give you an idea of how to approach things more sensefully.
Live demo here (click).
/* what am I creating? A word counter.
* How do I want to use it?
* -Call a function, passing in an element and a callback function
* -Bind the word counter to that element
* -When the word count changes, pass the new count to the callback function
*/
window.onload = function() {
var countDiv = document.getElementById('count');
wordCounter.bind(countDiv, displayCount);
//you can pass in whatever function you want. I made one called displayCount, for example
};
var wordCounter = {
current : 0,
bind : function(elem, callback) {
this.ensureEditable(elem);
this.handleIfChanged(elem, callback);
var that = this;
elem.addEventListener('keyup', function(e) {
that.handleIfChanged(elem, callback);
});
},
handleIfChanged : function(elem, callback) {
var count = this.countWords(elem);
if (count !== this.current) {
this.current = count;
callback(count);
}
},
countWords : function(elem) {
var text = elem.textContent;
var words = text.match(/(\w+\b)/g);
return (words) ? words.length : 0;
},
ensureEditable : function(elem) {
if (
elem.getAttribute('contenteditable') !== 'true' &&
elem.nodeName !== 'TEXTAREA' &&
elem.nodeName !== 'INPUT'
) {
elem.setAttribute('contenteditable', true);
}
}
};
var display = document.getElementById('display');
function displayCount(count) {
//this function is called every time the word count changes
//do whatever you want...the word counter doesn't care.
display.textContent = 'Word count is: '+count;
}

I would do probably something like this
http://jsfiddle.net/6WW7Z/2/
var wordsLimit = 50;
$('#group_3_1').click(function () {
wordsLimit = 200;
wordCount();
});
$('#group_3_2').click(function () {
wordsLimit = 600;
wordCount();
});
$('.message1').keydown(function () {
wordCount();
});
function wordCount() {
var text = $('.message1').text(),
textLength = text.length,
wordsCount = 0,
wordsRemaining = wordsLimit;
if(textLength > 0) {
wordsCount = text.replace(/[^\w ]/g, '').split(/\s+/).length;
wordsRemaining = wordsRemaining - wordsCount;
}
$('.word_count')
.html(wordsRemaining + " words remaining...")
.attr('id', (parseInt(wordsRemaining) < 0 ? 'bad' : 'good'));
};
wordCount();
It's not perfect and complete but it may show you direction how to do this. You should use change event on checkboxes to change wordsLimit if checked/unchecked. For styling valid/invalid words remaining message use classes rather than ids.

I think you should use radio in place of checkboxes because you can limit 200 or 600 only at a time.
Try this like,
wordCount();
$('input[name="entry.3.group"]').click(function () {
wordCount();
$('.word_count').html($(this).data('val') + " words remaining...");
});
$('.message1').keyup(function () {
wordCount();
});
function wordCount() {
var q = $('input[name="entry.3.group"]:checked').data('val');
var content_text = $('.message1').text(),
char_count = content_text.length;
if (char_count != 0) var word_count = q - content_text.replace(/[^\w ]/g, "").split(/\s+/).length;
$('.word_count').html(word_count + " words remaining...");
try {
if (Number(word_count) < 0) {
$(".word_count").attr("id", "bad");
} else {
$(".word_count").attr("id", "good");
}
} catch (error) {
//
}
};
Also you can add if your span has bad id then key up should return false;
See Demo

Implementing a javascript function to search in a div, getting textrange for the search

How do I get the textrange to do a search for a div (or a form)? Are there scripts already available, or jquery functions that search the text of a div?
I append a form to a div with this code:
$('#'+card_id).append('<form id="frm_search" name="frm_search" class="editableToolbar frm_search_links"> <input type="text" placeholder="Type a string..." name="linkcard_search_string" class="txt_form"> </form>');
I'd like to have a search function that will only look for a string in that div. I specify the text range like this.
txt = window.document.body.getelementbyid(card_id).createTextRange();
The search function is one that I found on the net and that I am trying to update to search the div instead of the entire page. There will be several divs on the page and I want the search to be specific to each. I call that function from search_links(card_id);.
function search_links (card_id, form) {
var search_str = document.frm_search.linkcard_search_string.value;
/* alert('search_links '+search_str); */
return search_linkcard(search_str, card_id);
}
var IE4 = (document.all);
var n = 0;
function search_linkcard(str, card_id) {
alert (card_id + ' ' + str);
var txt, i, found;
if (str == "")
return false;
// Find next occurance of the given string on the page, wrap around to the
// start of the page if necessary.
if (IE4) {
txt = window.document.body.getelementbyid(card_id).createTextRange();
// Find the nth match from the top of the page.
for (i = 0; i <= n && (found = txt.findText(str)) != false; i++) {
txt.moveStart("character", 1);
txt.moveEnd("textedit");
}
// If found, mark it and scroll it into view.
if (found) {
txt.moveStart("character", -1);
txt.findText(str);
txt.select();
txt.scrollIntoView();
n++;
}
// Otherwise, start over at the top of the page and find first match.
else {
if (n > 0) {
n = 0;
search_linkcard(str, card_id);
}
// Not found anywhere, give message.
else
alert("Not found.");
}
}
return false;
}
My specific questions are those at the beginning of the question: How do I specify a text range for the div? Is the syntax I have right? Are there scripts that already do what I want, i.e. search the contents of a specific div?

Did the search with :contains. Did not do one match at a time. Highlighted all matches.
// Open search
function open_search(card_id) {
$('#'+card_id).append('<form id="frm_search" name="frm_search" class="editableToolbar frm_search_links"> <input type="text" placeholder="Type a string..." name="linkcard_search_string" class="txt_form" onclick="clear_search(\''+card_id+'\', this.form);"> </form>');
var frm_elements = frm_search_link.elements;
for(i=0; i<frm_elements.length; i++) {
field_type = frm_elements[i].type.toLowerCase();
switch (field_type)
{
case "text":
frm_elements[i].value = "";
break;
default:
break;
}
}
}
// Close search
function close_search(card_id, form) {
$('form.frm_search_links', $('#'+card_id)).remove();
var card_select = '#'+card_id;
$('.link',$(card_select)).removeClass('search_results');
}
// Search links
function search_links (card_id, form) {
var search_str = document.frm_search.linkcard_search_string.value;
var search_select = '.link:contains('+search_str+')';
var card_select = '#'+card_id;
var result = $(search_select,$(card_select)).addClass('search_results');
if (result.length == 0 || result.length == null) document.frm_search.linkcard_search_string.value = 'Not found.';
}
// Clear search
function clear_search (card_id, form) {
document.frm_search.linkcard_search_string.value = '';
var card_select = '#'+card_id;
$('.link',$(card_select)).removeClass('search_results');
}

Get the DOM path of the clicked <a>

HTML
<body>
<div class="lol">
<a class="rightArrow" href="javascriptVoid:(0);" title"Next image">
</div>
</body>
Pseudo Code
$(".rightArrow").click(function() {
rightArrowParents = this.dom(); //.dom(); is the pseudo function ... it should show the whole
alert(rightArrowParents);
});
Alert message would be:
body div.lol a.rightArrow
How can I get this with javascript/jquery?

Here is a native JS version that returns a jQuery path. I'm also adding IDs for elements if they have them. This would give you the opportunity to do the shortest path if you see an id in the array.
var path = getDomPath(element);
console.log(path.join(' > '));
Outputs
body > section:eq(0) > div:eq(3) > section#content > section#firehose > div#firehoselist > article#firehose-46813651 > header > h2 > span#title-46813651
Here is the function.
function getDomPath(el) {
var stack = [];
while ( el.parentNode != null ) {
console.log(el.nodeName);
var sibCount = 0;
var sibIndex = 0;
for ( var i = 0; i < el.parentNode.childNodes.length; i++ ) {
var sib = el.parentNode.childNodes[i];
if ( sib.nodeName == el.nodeName ) {
if ( sib === el ) {
sibIndex = sibCount;
}
sibCount++;
}
}
if ( el.hasAttribute('id') && el.id != '' ) {
stack.unshift(el.nodeName.toLowerCase() + '#' + el.id);
} else if ( sibCount > 1 ) {
stack.unshift(el.nodeName.toLowerCase() + ':eq(' + sibIndex + ')');
} else {
stack.unshift(el.nodeName.toLowerCase());
}
el = el.parentNode;
}
return stack.slice(1); // removes the html element
}

Using jQuery, like this (followed by a solution that doesn't use jQuery except for the event; lots fewer function calls, if that's important):
$(".rightArrow").click(function () {
const rightArrowParents = [];
$(this)
.parents()
.addBack()
.not("html")
.each(function () {
let entry = this.tagName.toLowerCase();
const className = this.className.trim();
if (className) {
entry += "." + className.replace(/ +/g, ".");
}
rightArrowParents.push(entry);
});
console.log(rightArrowParents.join(" "));
return false;
});
Live example:
$(".rightArrow").click(function () {
const rightArrowParents = [];
$(this)
.parents()
.addBack()
.not("html")
.each(function () {
let entry = this.tagName.toLowerCase();
const className = this.className.trim();
if (className) {
entry += "." + className.replace(/ +/g, ".");
}
rightArrowParents.push(entry);
});
console.log(rightArrowParents.join(" "));
return false;
});
<div class=" lol multi ">
Click here
</div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
(In the live examples, I've updated the class attribute on the div to be lol multi to demonstrate handling multiple classes.)
That uses parents to get the ancestors of the element that was clicked, removes the html element from that via not (since you started at body), then loops through creating entries for each parent and pushing them on an array. Then we use addBack to add the a back into the set, which also changes the order of the set to what you wanted (parents is special, it gives you the parents in the reverse of the order you wanted, but then addBack puts it back in DOM order). Then it uses Array#join to create the space-delimited string.
When creating the entry, we trim className (since leading and trailing spaces are preserved, but meaningless, in the class attribute), and then if there's anything left we replace any series of one or more spaces with a . to support elements that have more than one class (<p class='foo bar'> has className = "foo bar", so that entry ends up being p.foo.bar).
Just for completeness, this is one of those places where jQuery may be overkill, you can readily do this just by walking up the DOM:
$(".rightArrow").click(function () {
const rightArrowParents = [];
for (let elm = this; elm; elm = elm.parentNode) {
let entry = elm.tagName.toLowerCase();
if (entry === "html") {
break;
}
const className = elm.className.trim();
if (className) {
entry += "." + className.replace(/ +/g, ".");
}
rightArrowParents.push(entry);
}
rightArrowParents.reverse();
console.log(rightArrowParents.join(" "));
return false;
});
Live example:
$(".rightArrow").click(function () {
const rightArrowParents = [];
for (let elm = this; elm; elm = elm.parentNode) {
let entry = elm.tagName.toLowerCase();
if (entry === "html") {
break;
}
const className = elm.className.trim();
if (className) {
entry += "." + className.replace(/ +/g, ".");
}
rightArrowParents.push(entry);
}
rightArrowParents.reverse();
console.log(rightArrowParents.join(" "));
return false;
});
<div class=" lol multi ">
Click here
</div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
There we just use the standard parentNode property (or we could use parentElement) of the element repeatedly to walk up the tree until either we run out of parents or we see the html element. Then we reverse our array (since it's backward to the output you wanted), and join it, and we're good to go.

I needed a native JS version, that returns CSS standard path (not jQuery), and deals with ShadowDOM. This code is a minor update on Michael Connor's answer, just in case someone else needs it:
function getDomPath(el) {
if (!el) {
return;
}
var stack = [];
var isShadow = false;
while (el.parentNode != null) {
// console.log(el.nodeName);
var sibCount = 0;
var sibIndex = 0;
// get sibling indexes
for ( var i = 0; i < el.parentNode.childNodes.length; i++ ) {
var sib = el.parentNode.childNodes[i];
if ( sib.nodeName == el.nodeName ) {
if ( sib === el ) {
sibIndex = sibCount;
}
sibCount++;
}
}
// if ( el.hasAttribute('id') && el.id != '' ) { no id shortcuts, ids are not unique in shadowDom
// stack.unshift(el.nodeName.toLowerCase() + '#' + el.id);
// } else
var nodeName = el.nodeName.toLowerCase();
if (isShadow) {
nodeName += "::shadow";
isShadow = false;
}
if ( sibCount > 1 ) {
stack.unshift(nodeName + ':nth-of-type(' + (sibIndex + 1) + ')');
} else {
stack.unshift(nodeName);
}
el = el.parentNode;
if (el.nodeType === 11) { // for shadow dom, we
isShadow = true;
el = el.host;
}
}
stack.splice(0,1); // removes the html element
return stack.join(' > ');
}

Here is a solution for exact matching of an element.
It is important to understand that the selector (it is not a real one) that the chrome tools show do not uniquely identify an element in the DOM. (for example it will not distinguish between a list of consecutive span elements. there is no positioning/indexing info)
An adaptation from a similar (about xpath) answer
$.fn.fullSelector = function () {
var path = this.parents().addBack();
var quickCss = path.get().map(function (item) {
var self = $(item),
id = item.id ? '#' + item.id : '',
clss = item.classList.length ? item.classList.toString().split(' ').map(function (c) {
return '.' + c;
}).join('') : '',
name = item.nodeName.toLowerCase(),
index = self.siblings(name).length ? ':nth-child(' + (self.index() + 1) + ')' : '';
if (name === 'html' || name === 'body') {
return name;
}
return name + index + id + clss;
}).join(' > ');
return quickCss;
};
And you can use it like this
console.log( $('some-selector').fullSelector() );
Demo at http://jsfiddle.net/gaby/zhnr198y/

The short vanilla ES6 version I ended up using:
Returns the output I'm used to read in Chrome inspector e.g body div.container input#name
function getDomPath(el) {
let nodeName = el.nodeName.toLowerCase();
if (el === document.body) return 'body';
if (el.id) nodeName += '#' + el.id;
else if (el.classList.length)
nodeName += '.' + [...el.classList].join('.');
return getDomPath(el.parentNode) + ' ' + nodeName;
};

I moved the snippet from T.J. Crowder to a tiny jQuery Plugin. I used the jQuery version of him even if he's right that this is totally unnecessary overhead, but i only use it for debugging purpose so i don't care.
Usage:
Html
<html>
<body>
<!-- Two spans, the first will be chosen -->
<div>
<span>Nested span</span>
</div>
<span>Simple span</span>
<!-- Pre element -->
<pre>Pre</pre>
</body>
</html>
Javascript
// result (array): ["body", "div.sampleClass"]
$('span').getDomPath(false)
// result (string): body > div.sampleClass
$('span').getDomPath()
// result (array): ["body", "div#test"]
$('pre').getDomPath(false)
// result (string): body > div#test
$('pre').getDomPath()
Repository
https://bitbucket.org/tehrengruber/jquery.dom.path

I've been using Michael Connor's answer and made a few improvements to it.
Using ES6 syntax
Using nth-of-type instead of nth-child, since nth-of-type looks for children of the same type, rather than any child
Removing the html node in a cleaner way
Ignoring the nodeName of elements with an id
Only showing the path until the closest id, if any. This should make the code a bit more resilient, but I left a comment on which line to remove if you don't want this behavior
Use CSS.escape to handle special characters in IDs and node names
~
export default function getDomPath(el) {
const stack = []
while (el.parentNode !== null) {
let sibCount = 0
let sibIndex = 0
for (let i = 0; i < el.parentNode.childNodes.length; i += 1) {
const sib = el.parentNode.childNodes[i]
if (sib.nodeName === el.nodeName) {
if (sib === el) {
sibIndex = sibCount
break
}
sibCount += 1
}
}
const nodeName = CSS.escape(el.nodeName.toLowerCase())
// Ignore `html` as a parent node
if (nodeName === 'html') break
if (el.hasAttribute('id') && el.id !== '') {
stack.unshift(`#${CSS.escape(el.id)}`)
// Remove this `break` if you want the entire path
break
} else if (sibIndex > 0) {
// :nth-of-type is 1-indexed
stack.unshift(`${nodeName}:nth-of-type(${sibIndex + 1})`)
} else {
stack.unshift(nodeName)
}
el = el.parentNode
}
return stack
}

All the examples from other ответов did not work very correctly for me, I made my own, maybe my version will be more suitable for the rest
const getDomPath = element => {
let templateElement = element
, stack = []
for (;;) {
if (!!templateElement) {
let attrs = ''
for (let i = 0; i < templateElement.attributes.length; i++) {
const name = templateElement.attributes[i].name
if (name === 'class' || name === 'id') {
attrs += `[${name}="${templateElement.getAttribute(name)}"]`
}
}
stack.push(templateElement.tagName.toLowerCase() + attrs)
templateElement = templateElement.parentElement
} else {
break
}
}
return stack.reverse().slice(1).join(' > ')
}
const currentElement = document.querySelectorAll('[class="serp-item__thumb justifier__thumb"]')[7]
const path = getDomPath(currentElement)
console.log(path)
console.log(document.querySelector(path))
console.log(currentElement)

var obj = $('#show-editor-button'),
path = '';
while (typeof obj.prop('tagName') != "undefined"){
if (obj.attr('class')){
path = '.'+obj.attr('class').replace(/\s/g , ".") + path;
}
if (obj.attr('id')){
path = '#'+obj.attr('id') + path;
}
path = ' ' +obj.prop('tagName').toLowerCase() + path;
obj = obj.parent();
}
console.log(path);

hello this function solve the bug related to current element not show in the path
check this now
$j(".wrapper").click(function(event) {
selectedElement=$j(event.target);
var rightArrowParents = [];
$j(event.target).parents().not('html,body').each(function() {
var entry = this.tagName.toLowerCase();
if (this.className) {
entry += "." + this.className.replace(/ /g, '.');
}else if(this.id){
entry += "#" + this.id;
}
entry=replaceAll(entry,'..','.');
rightArrowParents.push(entry);
});
rightArrowParents.reverse();
//if(event.target.nodeName.toLowerCase()=="a" || event.target.nodeName.toLowerCase()=="h1"){
var entry = event.target.nodeName.toLowerCase();
if (event.target.className) {
entry += "." + event.target.className.replace(/ /g, '.');
}else if(event.target.id){
entry += "#" + event.target.id;
}
rightArrowParents.push(entry);
// }
where $j = jQuery Variable
also solve the issue with .. in class name
here is replace function :
function escapeRegExp(str) {
return str.replace(/([.*+?^=!:${}()|\[\]\/\\])/g, "\\$1");
}
function replaceAll(str, find, replace) {
return str.replace(new RegExp(escapeRegExp(find), 'g'), replace);
}
Thanks

$(".rightArrow")
.parents()
.map(function () {
var value = this.tagName.toLowerCase();
if (this.className) {
value += '.' + this.className.replace(' ', '.', 'g');
}
return value;
})
.get().reverse().join(", ");